42f47cb41507151ec2db8422662adfd8d234533874740b6680ebd06f4f359403

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 03:33

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General

Target

PySilon-malware-3.7.5/resources/source_code/audio_control.py
Size

3KB
MD5

6a760b020cd268cbb98d75c56a8a4862
SHA1

42361cb81b705d959c6d4107397f675467531446
SHA256

adc2207e1c6b83eb6dabb2963f1f518e7b469394871b70688c7acd26df115a92
SHA512

a95a174012ae155a1643e1d6f6333a3dbb9b5398c39602fb53ec0c5eebcb140c0b128477a23e01debe6fcfefb9b1bf8e5c1784404d0f1b44a1cf59b55f00a8b2

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\py_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2532 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2532 AcroRd32.exe
2532 AcroRd32.exe

pid	process
2532	AcroRd32.exe

pid	process
2532	AcroRd32.exe
2532	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2032 wrote to memory of 2092	2032	cmd.exe	rundll32.exe
PID 2032 wrote to memory of 2092	2032	cmd.exe	rundll32.exe
PID 2032 wrote to memory of 2092	2032	cmd.exe	rundll32.exe
PID 2092 wrote to memory of 2532	2092	rundll32.exe	AcroRd32.exe
PID 2092 wrote to memory of 2532	2092	rundll32.exe	AcroRd32.exe
PID 2092 wrote to memory of 2532	2092	rundll32.exe	AcroRd32.exe
PID 2092 wrote to memory of 2532	2092	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\audio_control.py
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\audio_control.py
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2092

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\PySilon-malware-3.7.5\resources\source_code\audio_control.py"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2532

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
2805a0228fa01b2efa39d8dd9845895b

SHA1
f2052f7e9df158b54cfa8d1dfd757ea7aa7c7368

SHA256
5a0e207a906ec7b63afc1739d680f84b090845aae93e2aa9e2589f659cbbc3fc

SHA512
810759d143c4e075780e939df7e7355531f31cbee8b628d9a0fb9f41bc057645a7e7fd7f81a83d663e01ab4057e6522c418ce3976056a631b620de80774a678a

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